Ondřej Ládek (born 16 August 1979), known professionally as Xindl X, is a Czech musician, composer, and screenwriter.

[1][2] His music combines pop, folk, hip hop, jazz, and blues.

[6] In 2010, Ládek released Praxe relativity, which included the single "Láska v housce", a duet with Olga Lounová.

[8] In 2011, Ládek issued his first compilation album, Xpívánky, and in 2012, he published his next studio record, Láska.

[9] After the release of his fifth album, Kvadratura záchranného kruhu, Ládek was nominated as Male Singer of the Year at the 2016 Anděl Awards.